Hole saw



FIG. 1 is a perspective view of a hole saw, according to the new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines show portions of a hole saw which form no part of the claimed design. The “dot-dash” broken lines define the bounds of the claimed design, and form no part thereof. 

CLAIM We claim the ornamental design for a hole saw, as shown and described. 